기업합병 : 다수경쟁에서의 과잉지분에 대한 연구

이유태 한국재무관리학회 1997 財務管理硏究 Vol.14 No.3

상생형 현장실습교육을 통한 기업가정신과 창업가 역량 향상에 관한 연구: 새가게운동 사례

이유태,정대성,오윤석 한국벤처창업학회 2016 벤처창업연구 Vol.11 No.1

There is a growing interest in the technology transfer and commercialization both at home and abroad. Accordingly, this study looked at the concept of technology transfer and commercialization, identified the factors that should be taken into account in order to facilitate technology transfer and commercialization, and then performed a empirical analysis. As for the conventional technology transfer and commercialization, there was a tendency to limit its scope to the exploration, transfer and commercialization of technology itself. Here in this research, technology transfer and commercialization is defined the category to expand as various activities implemented in order to make sure that intellectual properties such as intangible technological developments, know-how, and knowledge are transferred between the relevant parties through a contract or negotiation, and the party to which the transfer is made can then further develop and exploit the technology into tangible products and other activities to obtain economic benefit out of that. In addition, the findings of the positive analysis of technology transfer and commercialization revealed that the focus of facilitating technology transfer has been on the technology itself, its management and securing efficiency of the systems and institutions involved in the technology transfer and commercialization. So there was lack of recognition as to the importance of financial support given to the phase of technology commercialization. This indicates that when it comes to the technology transfer and commercialization, quantitative performance has been the focus of interest such as patent application, registration, number of technology transfers, royalty, etc. So there was not enough understanding as to the issues of starting up a business, creating quality jobs through technology transfer and commercialization, which are directly related to the realization of the creative economy. In this regard, this research is expected to be used for the development for the future policies to boost technology transfer and commercialization as it suggests not only simply ensuring quantitative performance but also necessary to create the environment for the creation of the stable ecosystem for the parties involved in the technology transfer and commercialization and then to build circumstances in which creative economy can be realized. 본 연구에서는 상생형 현장체험 창업교육의 일환인 새가게운동이 대학생 창업의도와 현장체험 대상기업인 소상공인 경영개선에 미치는 영향을 분석하였다. 본 연구의 주요 결과는 다음과 같다. 첫째, 새가게운동 체험이 기업가정신, 창업태도, 창업의도를 향상시키는 것으로 나타났다. 둘째, 기업가정신은 창업태도에, 창업태도는 창업의도에 정(+)의 영향을 미치는 것으로 나타났다. 셋째, 소상공인들의 창업가 역량(경영역량)과 기업가정신이 향상되고 이들의 향상은 재무적, 비재무적 성과에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 본 연구의 시사점은 새가게운동과 같은 새로운 상생형 체험 프로그램이 참여한 대학생과 업주에게 양방향적으로 긍적적인 영향을 주고 있는 것이다. 따라서 창업교육에 있어서 세대별로 단절되는 것보다는 새가게운동과 같이 청장년이 같이 노력해서 그 결과가 상생적인 양방형 현장체험학습의 강화가 필요하다고 볼 수 있다.

DISCRETE-TIME BULK-SERVICE QUEUE WITH MARKOVIAN SERVICE INTERRUPTION AND PROBABILISTIC BULK SIZE

이유태 한국전산응용수학회 2010 Journal of applied mathematics & informatics Vol.28 No.1

This paper analyzes a discrete-time bulk-service queue with probabilistic bulk size, where the service process is interrupted by a Markov chain. We study the joint probability generating function of system occupancy and the state of the Markov chain. We derive several performance measures of interest, including average system occupancy and delay distribution.

시간 기반 소프트웨어 재활 방식의 가용도 분석

이유태,김형석,Lee, Yutae,Kim, Hyoungseok 한국정보통신학회 2019 한국정보통신학회논문지 Vol.23 No.2

소프트웨어 노화에 따른 시스템의 예기치 않은 장애 발생은 재활 기능을 주기적으로 수행함으로써 줄일 수 있다. 이 시스템 재활 기능은 주로 시스템이 가장 한가한 시간에 수행하는 것이 효과적이다. 이를 통해 시스템 가용도를 높일 수 있다. 재활 기법은 크게 시간 기반과 조건 기반의 두 가지 종류로 나눌 수 있다. 시간 기반 재활은 정해진 시간 간격마다 수행되고, 조건 기반 재활은 시스템 상태가 특정 조건을 만족할 때 수행된다. 조건 기반 방식은 시스템 감시와 정보의 수집 및 통계적 분석을 통해 재활 시점을 추정해야하기 때문에 추가적인 비용이 발생한다. 본 논문은 시간 기반 소프트웨어 재활 기법을 분석할 수 있는 확률 모형을 제시한다. 제시한 모형은 재활을 주기적으로 수행하는 시간 간격을 일정하게 유지할 수 있는 현실적인 상황을 반영한다. 해당 확률 모형을 수학적으로 분석하여, 정상 상태에서의 시스템 가용도와 사용자 인지 가용도 및 이에 따른 비용을 분석한다. Rejuvenating a system periodically during the most idle time of the system reduces unexpected downtime caused by software aging and increases its availability. In general, software rejuvenation can be largely divided into two broad categories: time-based rejuvenation policy and condition-based rejuvenation policy. In time-based rejuvenation policy the software rejuvenation is triggered at scheduled time epochs with fixed time intervals, while in condition-based rejuvenation policy the software rejuvenation is performed when system state is checked to satisfy a specific condition. Conditionbased policy adds extra cost to the system due to system monitoring and aging estimation. This paper presents a stochastic model for analyzing time-based software rejuvenation mechanism, where the rejuvenation is triggered at scheduled time epochs with fixed time intervals, and provides an analytical solution for the steady-state availability, the user-perceived availability, and the corresponding cost.

예방 관리 기능을 갖는 시스템의 가용도 분석

이유태,Lee, Yutae 한국정보통신학회 2019 한국정보통신학회논문지 Vol.23 No.7

Performing preventive maintenance on a system reduces unexpected downtime caused by system aging and increases its availability. In general, preventive maintenance can be largely divided into two broad categories: time-based maintenance policy and condition-based maintenance policy. In the time-based maintenance policy the preventive maintenance is triggered at scheduled time epochs with fixed time intervals, while in the condition-based maintenance policy the preventive maintenance is performed when system state is checked to satisfy a specific condition. Condition-based maintenance has some benefits in improving maintenance efficiency, compared to time-based one. This paper presents a stochastic model for analyzing a system with condition-based preventive maintenance, where the preventive maintenance is performed after a random time since the system aging occurs, and provides an analytical solution for the steady-state availability and the corresponding profit. 노화에 의한 시스템의 예기치 않은 장애 발생은 예방 관리 기능을 수행함으로써 줄일 수 있으며, 이를 통해 시스템의 가용도를 높일 수 있다. 예방 관리 기법은 크게 시간 기반과 조건 기반의 두 가지로 나눌 수 있다. 시간 기반 방식은 정해진 시간 간격마다 수행되고, 조건 기반 방식은 시스템 상태가 특정 조건을 만족할 때 수행된다. 조건 기반 방식은 시간 기반 방식과 비교했을 때 예방 관리의 효율성을 향상시킬 수 있다는 장점이 있다. 본 논문은 노화 상태에서 일정 시간이 지난 후 예방 관리를 수행하게 되는 시스템을 분석할 수 있는 확률 모형을 제시한다. 제시한 모형은 현실적인 상황을 반영하여 비 마르코비안 모형으로 모델링한다. 해당 확률 모형을 수학적으로 해석하여 정상 상태에서의 시스템 가용도와 수익을 분석한다.

한국기업의 유상증자에 대한 조회공시의 정보 효율성

이유태 부경대학교 1999 釜慶大學校 論文集 Vol.4 No.1

Periodic Sensing and Greedy Access Policy Using Channel Models with Generally Distributed On and Off Periods in Cognitive Networks

이유태 한국전산응용수학회 2014 Journal of applied mathematics & informatics Vol.32 No.1

One of the fundamental issues in the design of dynamic spectrum access policy is the modeling of the dynamic behavior of channel occupancy by primary users. Under a Markovian modeling of channel occupancy, a periodic sensing and greedy access policy is known as one of the simple and practical dynamic spectrum access policies in cognitive radio networks. In this paper, the primary occupancy of each channel is modeled as a discrete-time alternating renewal process with generally distributed on- and off-periods. A periodic sensing and greedy access policy is constructed based on the general channel occupancy model. Simulation results show that the proposed policy has better throughput than the policies using channel models with exponentially distributed on- or off-periods.

MODELING AND ANALYSIS FOR OPPORTUNISTIC SPECTRUM ACCESS

이유태,Dong Bo Sim 한국전산응용수학회 2011 Journal of applied mathematics & informatics Vol.29 No.5

We present an analytic model of an unslotted opportunistic spectrum access (OSA) network and evaluate its performance such as interruption probability, service completion time, and throughput of secondary users. Numerical examples are given to show the performance of secondary users in cognitive networks. The developed modeling and analysis method can be used to evaluate the performance of various OSA networks.

Performance of Myopic Policy for Multi-Channel Dynamic Spectrum Access Networks

이유태 영남수학회 2014 East Asian mathematical journal Vol.30 No.1

To solve inefficient spectrum usage problem under current static spectrum management policy, various kinds of dynamic spectrum access strategies have appeared. Myopic policy, which maximizes immediate throughput, is a simple and robust strategy with reduced complexity. In this paper, we present a simple mathematical model to evaluate the saturation throughput and medium access delay of a myopic policy in the presence of multiple channels.

Performance of myopic policy for opportunistic spectrum sharing

이유태 영남수학회 2011 East Asian mathematical journal Vol.27 No.1

Due to underutilization of spectrum under current inefficient and static spectrum management policy, various kinds of opportunistic spectrum access (OSA) strategies have appeared. Myopic policy is a simple and robust OSA strategy with reduced complexity that maximizes immediate throughput. In this paper, we propose mathematical models to evaluate the throughput and the MAC delay of a myopic policy under saturation traffic conditions. Using the MAC delay distribution, we evaluate the packet delay of secondary users under nonsaturation conditions. Numerical results are given to show the performance of the myopic policy in cognitive radio networks.